Energy Harvesting from the Stray Electromagnetic Field around the Electrical Power Cable for Smart Grid Applications

Table 3

Components of devised WTSN for transformer’s temperature monitoring.

Component	Model	Main features
Transmitter	nRF24L01	40 m range
Temperature sensor	LM-35	−55 to 150°C temperature range
Microcontroller	Arduino Pro Mini	ATmega168, 3.3 V–5 V, 40 mA, 8 Mhz clock speed
Rectifier	3-step Cockcroft-Walton	AC to DC, step-up voltage
Battery	Ni-Cd rechargeable battery	3.8 V, 450 mAh